Zero-Downtime Migration

Legacy System Modernization

Transform aging COBOL, mainframe, and legacy applications into modern, cloud-native systems. Reduce technical debt by 60%, improve performance, and maintain mission continuity throughout the transition.

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Key Benefits

Why Modernize Legacy Systems?

Legacy systems create operational risk, limit innovation, and drain budgets. Modernization enables agility and reduces costs.

Zero-Downtime Migration

Phased migration strategies ensure continuous mission operations. We modernize incrementally, minimizing risk and maintaining service availability.

Cloud-Native Architecture

Transform monolithic applications into microservices deployed on FedRAMP-authorized cloud platforms for improved scalability and resilience.

Reduced Technical Debt

Eliminate costly maintenance of aging COBOL, mainframe, and legacy systems. Reduce operational costs by 40-60% while improving performance.

Enhanced Security & Compliance

Modern applications built with security-first principles, meeting current NIST 800-53 and FedRAMP requirements that legacy systems can't achieve.

Our Approach

Modernization Strategies

We tailor our approach based on your timeline, budget, and requirements—from quick cloud migration to complete rebuilds.

Replatform (Lift & Shift)

Move applications to cloud infrastructure with minimal changes

Best For:Quick cloud migration, time-sensitive projects
Timeline:2-4 months
Effort Level:Low

Refactor

Restructure code to improve performance and maintainability

Best For:Applications with solid architecture needing optimization
Timeline:4-8 months
Effort Level:Medium

Rearchitect

Redesign using modern patterns (microservices, cloud-native)

Best For:Scalability requirements, modern user experience needs
Timeline:8-16 months
Effort Level:High

Rebuild

Completely rewrite using modern languages and frameworks

Best For:Outdated technology, significant new requirements
Timeline:12-24 months
Effort Level:High

Core Expertise

Legacy Systems We Modernize

From COBOL mainframes to client-server applications, we have deep experience modernizing every type of legacy system.

COBOL/Mainframe

Common Challenges:

  • Aging workforce
  • High operational costs
  • Limited scalability
  • Difficult integration

Thalen Technologies Solution:

Migrate to Java/Python microservices on cloud infrastructure with API wrappers for gradual transition

Client-Server Applications

Common Challenges:

  • Desktop dependencies
  • Limited accessibility
  • Difficult updates
  • Poor mobile support

Thalen Technologies Solution:

Transform into web-based applications with responsive design and cloud deployment

Legacy Databases

Common Challenges:

  • Proprietary formats
  • Limited query capabilities
  • Poor performance
  • Expensive licenses

Thalen Technologies Solution:

Migrate to PostgreSQL or cloud-native databases with data transformation and validation

Monolithic Applications

Common Challenges:

  • Difficult to update
  • Scaling limitations
  • Technology lock-in
  • High risk changes

Thalen Technologies Solution:

Decompose into microservices with API gateways and containerized deployment

Ready to Modernize Your Legacy Systems?

Schedule a free assessment to explore modernization strategies tailored to your systems, timeline, and budget.

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